422517690 has 96 divisors (see below), whose sum is σ = 1281196800. Its totient is φ = 96568416.

The previous prime is 422517673. The next prime is 422517691. The reversal of 422517690 is 96715224.

It is a super-2 number, since 2×422517690² = 357042396725872200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (422517691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 24027 + ... + 37713.

It is an arithmetic number, because the mean of its divisors is an integer number (13345800).

Almost surely, 2^422517690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422517690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (640598400).

422517690 is an abundant number, since it is smaller than the sum of its proper divisors (858679110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422517690 is a wasteful number, since it uses less digits than its factorization.

422517690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13721 (or 13704 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 422517690 is about 20555.2350996042. The cubic root of 422517690 is about 750.3806600978.

The spelling of 422517690 in words is "four hundred twenty-two million, five hundred seventeen thousand, six hundred ninety".